呼出气一氧化氮能预测难治性哮喘患者哮喘控制情况
2010/02/03
我们的结果显示FeNO能鉴别难治性哮喘患者,这些患者有可能对大剂量糖皮质激素吸入治疗或全身使用激素治疗有反应。
(苏楠 审校)
Eur Respir J. 2009 Dec 8. [Epub ahead of print]
Exhaled nitric oxide predicts control in patients with difficult-to-treat asthma.
Pérez de Llano LA, González FC, Añón OC, Perea MP, Gómez RG, Villar AB, Caruncho MV, Boquete París M.
Pneumology Service. Hospital Xeral-Calde. Lugo. Spain.
We aimed to evaluate the accuracy of baseline exhaled nitric oxide (FeNO) levels to recognize individuals with difficult-to-treat asthma who have the potential to achieve control with a guidelines-based stepwise strategy.One hundred two consecutive patients with suboptimal asthma control underwent stepwise increase in the treatment with maximal fluticasone-salmeterol combination dose for one month. Then, those who remained uncontrolled received oral corticosteroids for an additional month.With this approach, 53 patients (52%) gained control. Those who achieved control were more likely to have positive skin results (60.4 % vs 34 %; p=0.01), positive bronchodilator test (57.1 % vs 35.8 %; p=0.02) and peak expiratory flow variability >/= 20% (71.1 % vs 49.1 %; p=0.04). Conversely, depression was more frequent in those who remained uncontrolled (18.4 % vs 43.4 %; p=0.01). An FeNO value >/=30 ppb demonstrated a sensitivity of 87.5% (95% CI, 73.9 % to 94.5 %) and a specificity of 90.6% (95% CI, 79.7 % to 95.9 %) for the identification of responsive asthmatics.The current results suggest that FeNO can identify patients with difficult-to-treat asthma and the potential to respond to high doses of inhaled corticosteroids or systemic steroids.
Eur Respir J. 2009 Dec 8. [Epub ahead of print]
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